<template>
  <div>
    <div class="search">
      <input v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音" />
    </div>
    <div class="search-content" ref="search" v-show="keyword">
      <ul >
        <li  v-for="item of list" class="searct-item" :key="item.id">{{item.text}}</li>
        <li class="searct-item" v-show="hasNoData">没有找到匹配数据</li>
      </ul>
    </div>
  </div>
</template>

<script>
  import Bscroll from 'better-scroll'
  export default {
    name: 'CitySearch',
    props: {
      cities: Array
    },
    data () {
      return {
        keyword:'',
        list:[],
        timer:null
      }
    },
    computed: {
      hasNoData () {
        return !this.list.length
      }
    },
    watch: {
      keyword () {
        if(this.timer) {
          clearTimeout(this.timer)
        }
        if(!this.keyword){
          this.list = []
          return
        }
        this.timer = setTimeout( () => {
          const result = []
          this.cities.forEach((value) => {
            if(value.text.indexOf(this.keyword) > -1){
              result.push(value)
            }
          })

          this.list = result
        },100)
      }
    },
    mounetd () {
      this.scroll = new Bscroll(this.$refs.search)
    },

  }
</script>

<style lang="stylus" scoped="scoped">
  @import '../../../assets/styles/varibles.styl'

  .search{
    height: .72rem;
    padding: 0 .1rem;
    background: $bgColor;
    position fixed;
    top: 0.8rem;
    width 100%;
    z-index: 99;
  }

  .search-input
    box-sizing: border-box
    width: 96%
    height: .62rem
    padding: 0 .1rem
    line-height: .62rem
    text-align: center
    border-radius: .06rem
    color: #666
  .search-content
    z-index: 1
    overflow: hidden
    position: absolute
    top: 1.58rem
    left: 0
    right: 0
    bottom: 0
    background: #eee
    .search-item
      line-height: .72rem
      height.62rem
      padding-left: .2rem
      background: #fff
      color: #666
      border-bottom:1px solid #ccc
</style>
